Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'506'133
Articles rated: 2609

26 April 2024

» arxiv » 1904.6931

Article overview

Diversity of shapes and rotations in the gamma-soft 130Ba nucleus: first observation of a t-band in the A=130 mass region
C. M. Petrache ; P. M. Walker ; S. Guo ; Q. B. Chen ; S. Frauendorf ; Y. X. Liu ; R. A. Wyss ; D. Mengoni ; Y. Qiang ; A. Astier ; E. Dupont ; R. Li ; B. F. Lv ; K. K. Zheng ; D. Bazzacco ; A. Boso ; A. Goasduff ; 8 F. Recchia ; D. Testov ; F. Galtarossa ; G. Jaworski ; D. R. Napoli ; S. Riccetto ; M. Siciliano ; J. J. Valiente-Dobon ; M. L. Liu ; X. H. Zhou ; J. G. Wang ; C. Andreoiu ; F. H. Garcia ; K. Ortner ; K. Whitmore ; T. Back ; B. Cederwall ; E. A. Lawrie ; I. Kuti ; D. Sohler ; J. Timar ; T. Marchlewski ; J. Srebrny ; A. Tucholski ;
Date:	15 Apr 2019
Abstract:	Several new bands have been identified in 130Ba, among which there is one with band-head spin 8+. Its properties are in agreement with the Fermi-aligned u h11/2^2 , 7/2+[523] otimes 9/2-[514] Nilsson configuration. This is the first observation of a two-quasiparticle t-band in the A=130 mass region. The t-band is fed by a dipole band involving two additional h11/2 protons. The odd-spin partners of the proton and neutron S-bands and the ground-state band at high spins are also newly identified. The observed bands are discussed using several theoretical models, which strongly suggest the coexistence of prolate and oblate shapes polarized by rotation aligned two-proton and two-neutron configurations, as well as prolate collective rotations around axes with different orientations. With the new results, 130Ba presents one of the best and most complete sets of collective excitations that a gamma-soft nucleus can manifest at medium and high spins, revealing a diversity of shapes and rotations for the nuclei in the A = 130 mass region.
Source:	arXiv, 1904.6931
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap